Spring



p 1934- -R. c. WINDERS 1,974,405

SPRING Filed Sept. 26, 1931 INVENTOR ATTORNEY Patented Sept. 1 8,v 1 934 ..1,9'z4,405 R G r Robert CLWiiaclers, Walnut Park, Calif. Application sepiembr-zs, 1933, sim'1nt. 691,005

4 Claims.

This invention relates to springs suitable for use as upholstery. It appertains to a group of coiled spring units tied together to form an assembly. It is desirable that such assemblies be 535i light in weight, the spring units be grouped close together and that a minimum of the covering enveloping the springs be unsupported. Furthermore, the individual spring units should be securely fastened together against separation and 10.51 slippage with respect to one another, and the whole assembly be capable of being rolled. Due to the weaving of the springs, the ties must allow bending movement of the springs to accommodate themselves todiiierences in distortion.

%; Unless tying, enabling such movement is effected, the assembly does not have softness. If the springs are tied to allow themselves to slip on one another and to be moved independently of one another, noise may result in use of the gggsprings. My invention contemplates the use of a noise dampening tie.

My invention is illustrated in the accompanying drawing, in which:

Fig. 1 is a plan view showing a fragment of ila spring, a portion of one row being shown; Fig. 2 is a sectional view as seen on the line 2-2 of Fig. 1; and Fig. 3 is a detail sectional view as seen on the line 3-3 of Fig. 2.

Referring more particularly to the drawing, 301Tthe spring comprises a plurality of coiled spring units 5, the top and bottom convolutions being enlarged in diameter, adjacent tops of the coils in a row are fastened together and likewise adjacent bottoms. The coil units are in general of icommon type of construction used for coiled springs in upholstery. The spring units 5 being arranged in rows and rows of spring units being assembled parallel to one another with a suitable distance between rows. The spring units E1 in a row are contiguous to one another with the top convolutions and the bottom convolutions locked together by means later described. At contiguous portions of the terminal coils, the latter are bent to provide offset loops 6a and 61) 4551 directed axially of the coil units. Loops 6a are of less width than the loops 6b so that when placed side by side in registration a wire 7 may be passed outside of the legs of a loop 611 and inside the legs of its companion loop 62). It will 5Q.ialso be noted that loops 6a are of greater height than loops 6b.

Extending transversely across the rows are tie wires '7 having looks for adjacent springs provided by forming offset loop 8 in the wires. These loops comprise crowns 8a and legs 8b. The

legs 86 are spaced at widths apart such as to lie in the spaces between the legs of loops 6a and 6b with the crowns 8a lying against the inner sides of loops 6a. The

crowns of loops 6a form eyes with the crowns of loop 61) whereby cords 9 may be strung therethrough locking the spring units together. The legs of the several loops being interlaced prevent revoluble slipping and hold the units against lateral displacement, yet accommodate the units to form a noise dampening lock. The entire assemblage is flexible permitting rolling of the spring. The cords 9 and the wires '7 may be attached at their ends in any desired manner to end coils of the spring of such frame work as may be employed in the completed assembly.

What I claim is:-

1. A spring comprising a plurality of coiled spring units arranged in a row, contiguous spring units in a row having their terminal coils formed with diametrically opposite loops offset axially inward with relation to the units, one loop of a coil being of greater width and less height than its other loop, said coils being disposed with a loop of greater width and a loop of lesser width adjacent one another to form companions, tie wires having offset loops woven through the companion loops of said units, the legs of a tie wire loop extending between the inside of legs'of a coil loop of greater width and the outside of legs of its companion coil loop of lesser width, keeper ties of cord extending lengthwise of said row and rove through the eyes formed by the crowns of companion loops.

2. A spring comprising a plurality of coiled spring units arranged in a row, contiguous spring units in a row having their terminal coils formed with loops offset axially with relation to the units, loops of adjacent coils being placed side by side to form companions, one loop being of greater width and less height than its companion loop, tie wires having offset loops woven through the companion loops of said units, the legs of a tie wire loop extending between the inside of legs of a coil loop of greater width and the outside of'legs of its companion coil loop of lesser width,

Iii?) keeper ties of cord extending lengthwise of said row and rove through the eyes formed by the crowns of companion loops.

3. A spring comprising a plurality of coiled spring units arranged in a row, contiguous spring units in a row having their terminal coils formed with diametrically opposite loops offset axially inward with relation to the units, one loop of a coil being of greater width than its other loop, said coils being disposed with a loop of greater width and a loop of lesser width adjacent one another to form companions, tie wires having offset loops woven through the companion loops of said units, the legs of a tie wire loop extending between the inside of legs of a, coil loop of greater width and the outside of legs of its companion coil loop of lesser width, keeper ties of cord extending lengthwise of said row and woven over the crown of one coil loop and under the crown of its companion loop.

4. A spring comprising a plurality of coiled spring units arranged in a row, contiguous spring units in a row having their terminal coils formed with loops ofiset axially with relation to the units, loops of adjacent coils being placed side by side to form companions, one loop being of greater width than its companion loop, tie wires having offset loops woven through the companion loops of said units, the legs of a tie wire loop extending between the inside of legs of a coil loop of greater width and the outside of legs of its companion coil loop of lesser width, keeper ties of cord extending lengthwise of said row and woven over the crown of one coil loop and under the crown of its companion loop.

ROBERT C. WINDERS. 

